/* w_tool.c
 *
 * Micropolis, Unix Version.  This game was released for the Unix platform
 * in or about 1990 and has been modified for inclusion in the One Laptop
 * Per Child program.  Copyright (C) 1989 - 2007 Electronic Arts Inc.  If
 * you need assistance with this program, you may contact:
 *   http://wiki.laptop.org/go/Micropolis  or email  micropolis@laptop.org.
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or (at
 * your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.  You should have received a
 * copy of the GNU General Public License along with this program.  If
 * not, see <http://www.gnu.org/licenses/>.
 * 
 *             ADDITIONAL TERMS per GNU GPL Section 7
 * 
 * No trademark or publicity rights are granted.  This license does NOT
 * give you any right, title or interest in the trademark SimCity or any
 * other Electronic Arts trademark.  You may not distribute any
 * modification of this program using the trademark SimCity or claim any
 * affliation or association with Electronic Arts Inc. or its employees.
 * 
 * Any propagation or conveyance of this program must include this
 * copyright notice and these terms.
 * 
 * If you convey this program (or any modifications of it) and assume
 * contractual liability for the program to recipients of it, you agree
 * to indemnify Electronic Arts for any liability that those contractual
 * assumptions impose on Electronic Arts.
 * 
 * You may not misrepresent the origins of this program; modified
 * versions of the program must be marked as such and not identified as
 * the original program.
 * 
 * This disclaimer supplements the one included in the General Public
 * License.  TO THE FULLEST EXTENT PERMISSIBLE UNDER APPLICABLE LAW, THIS
 * PROGRAM IS PROVIDED TO YOU "AS IS," WITH ALL FAULTS, WITHOUT WARRANTY
 * OF ANY KIND, AND YOUR USE IS AT YOUR SOLE RISK.  THE ENTIRE RISK OF
 * SATISFACTORY QUALITY AND PERFORMANCE RESIDES WITH YOU.  ELECTRONIC ARTS
 * DISCLAIMS ANY AND ALL EXPRESS, IMPLIED OR STATUTORY WARRANTIES,
 * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY, SATISFACTORY QUALITY,
 * FITNESS FOR A PARTICULAR PURPOSE, NONINFRINGEMENT OF THIRD PARTY
 * RIGHTS, AND WARRANTIES (IF ANY) ARISING FROM A COURSE OF DEALING,
 * USAGE, OR TRADE PRACTICE.  ELECTRONIC ARTS DOES NOT WARRANT AGAINST
 * INTERFERENCE WITH YOUR ENJOYMENT OF THE PROGRAM; THAT THE PROGRAM WILL
 * MEET YOUR REQUIREMENTS; THAT OPERATION OF THE PROGRAM WILL BE
 * UNINTERRUPTED OR ERROR-FREE, OR THAT THE PROGRAM WILL BE COMPATIBLE
 * WITH THIRD PARTY SOFTWARE OR THAT ANY ERRORS IN THE PROGRAM WILL BE
 * CORRECTED.  NO ORAL OR WRITTEN ADVICE PROVIDED BY ELECTRONIC ARTS OR
 * ANY AUTHORIZED REPRESENTATIVE SHALL CREATE A WARRANTY.  SOME
 * JURISDICTIONS DO NOT ALLOW THE EXCLUSION OF OR LIMITATIONS ON IMPLIED
 * WARRANTIES OR THE LIMITATIONS ON THE APPLICABLE STATUTORY RIGHTS OF A
 * CONSUMER, SO SOME OR ALL OF THE ABOVE EXCLUSIONS AND LIMITATIONS MAY
 * NOT APPLY TO YOU.
 */
#include "sim.h"

short specialBase = CHURCH;
int OverRide = 0;
int Expensive = 1000;
int Players = 1;
int Votes = 0;
int PendingTool = -1;
int PendingX;
int PendingY;

QUAD CostOf[] = {
    100, 100, 100, 500,
    0, 500, 5, 1,
    20, 10, 0, 0,
    5000, 10, 3000, 3000,
    5000, 10000, 100, 0,
};

short toolSize[] = {
    3, 3, 3, 3,
    1, 3, 1, 1,
    1, 1, 0, 0,
    4, 1, 4, 4,
    4, 6, 1, 0,
};

short toolOffset[] = {
    1, 1, 1, 1,
    0, 1, 0, 0,
    0, 0, 0, 0,
    1, 0, 1, 1,
    1, 1, 0, 0,
};

QUAD toolColors[] = {
    COLOR_LIGHTGREEN | (COLOR_LIGHTGREEN << 8), /* residentialState */
    COLOR_LIGHTBLUE | (COLOR_LIGHTBLUE << 8),   /* commercialState */
    COLOR_YELLOW | (COLOR_YELLOW << 8), /* industrialState */
    COLOR_LIGHTGREEN | (COLOR_RED << 8),    /* fireState */
    COLOR_ORANGE | (COLOR_ORANGE << 8), /* queryState */
    COLOR_LIGHTGREEN | (COLOR_LIGHTBLUE << 8),  /* policeState */
    COLOR_DARKGRAY | (COLOR_YELLOW << 8),   /* wireState */
    COLOR_LIGHTBROWN | (COLOR_LIGHTBROWN << 8), /* dozeState */
    COLOR_DARKGRAY | (COLOR_OLIVE << 8),    /* rrState */
    COLOR_DARKGRAY | (COLOR_WHITE << 8),    /* roadState */
    COLOR_LIGHTGRAY | (COLOR_LIGHTGRAY << 8),   /* chalkState */
    COLOR_DARKGRAY | (COLOR_DARKGRAY << 8), /* eraserState */
    COLOR_LIGHTGRAY | (COLOR_LIGHTGREEN << 8),  /* stadiumState */
    COLOR_LIGHTBROWN | (COLOR_LIGHTGREEN << 8), /* parkState */
    COLOR_LIGHTGRAY | (COLOR_LIGHTBLUE << 8),   /* seaportState */
    COLOR_LIGHTGRAY | (COLOR_YELLOW << 8),  /* powerState */
    COLOR_LIGHTGRAY | (COLOR_YELLOW << 8),  /* nuclearState */
    COLOR_LIGHTGRAY | (COLOR_LIGHTBROWN << 8),  /* airportState */
    COLOR_LIGHTGRAY | (COLOR_RED << 8), /* networkState */
};

Ink *NewInk();

void DoSetWandState(SimView * view, short state);
void DoPendTool(SimView * view, int tool, int x, int y);
void EraserTo(SimView * view, int x, int y);
void EraserStart(SimView * view, int x, int y);
void DoShowZoneStatus(char *str, char *s0, char *s1, char *s2, char *s3, char *s4, int x, int y);

/*************************************************************************/
/* UTILITIES */

void setWandState(SimView * view, short state)
{
#if 0
    if(state < 0)
    {
        specialBase = -state;
        state = specialState;
    }
#endif

    view->tool_state = state;
    DoUpdateHeads();
    DoSetWandState(view, state);
}

int putDownPark(SimView * view, short mapH, short mapV)
{
    short value, tile;

    if(TotalFunds - CostOf[parkState] >= 0)
    {
        value = Rand(4);

        if(value == 4)
            tile = FOUNTAIN | BURNBIT | BULLBIT | ANIMBIT;
        else
            tile = (value + WOODS2) | BURNBIT | BULLBIT;

        if(Map[mapH][mapV] == 0)
        {
            Spend(CostOf[parkState]);
            UpdateFunds();
            Map[mapH][mapV] = tile;
            return 1;
        }
        return -1;
    }
    return -2;
}

int putDownNetwork(SimView * view, short mapH, short mapV)
{
    int tile = Map[mapH][mapV] & LOMASK;

    if((TotalFunds > 0) && tally(tile))
    {
        Map[mapH][mapV] = tile = 0;
        Spend(1);
    }

    if(tile == 0)
    {
        if((TotalFunds - CostOf[view->tool_state]) >= 0)
        {
            Map[mapH][mapV] = TELEBASE | CONDBIT | BURNBIT | BULLBIT | ANIMBIT;
            Spend(CostOf[view->tool_state]);
            return 1;
        }
        else
        {
            return -2;
        }
    }
    else
    {
        return -1;
    }
}

short checkBigZone(short id, short *deltaHPtr, short *deltaVPtr)
{
    switch (id)
    {
        case POWERPLANT:       /* check coal plant */
        case PORT:             /* check sea port */
        case NUCLEAR:          /* check nuc plant */
        case STADIUM:          /* check stadium */
            *deltaHPtr = 0;
            *deltaVPtr = 0;
            return (4);

        case POWERPLANT + 1:   /* check coal plant */
        case COALSMOKE3:       /* check coal plant, smoke */
        case COALSMOKE3 + 1:   /* check coal plant, smoke */
        case COALSMOKE3 + 2:   /* check coal plant, smoke */
        case PORT + 1:         /* check sea port */
        case NUCLEAR + 1:      /* check nuc plant */
        case STADIUM + 1:      /* check stadium */
            *deltaHPtr = -1;
            *deltaVPtr = 0;
            return (4);

        case POWERPLANT + 4:   /* check coal plant */
        case PORT + 4:         /* check sea port */
        case NUCLEAR + 4:      /* check nuc plant */
        case STADIUM + 4:      /* check stadium */
            *deltaHPtr = 0;
            *deltaVPtr = -1;
            return (4);

        case POWERPLANT + 5:   /* check coal plant */
        case PORT + 5:         /* check sea port */
        case NUCLEAR + 5:      /* check nuc plant */
        case STADIUM + 5:      /* check stadium */
            *deltaHPtr = -1;
            *deltaVPtr = -1;
            return (4);

            /*
             * check airport 
             */
    /*** first row ***/
        case AIRPORT:
            *deltaHPtr = 0;
            *deltaVPtr = 0;
            return (6);
        case AIRPORT + 1:
            *deltaHPtr = -1;
            *deltaVPtr = 0;
            return (6);
        case AIRPORT + 2:
            *deltaHPtr = -2;
            *deltaVPtr = 0;
            return (6);
        case AIRPORT + 3:
            *deltaHPtr = -3;
            *deltaVPtr = 0;
            return (6);

    /*** second row ***/
        case AIRPORT + 6:
            *deltaHPtr = 0;
            *deltaVPtr = -1;
            return (6);
        case AIRPORT + 7:
            *deltaHPtr = -1;
            *deltaVPtr = -1;
            return (6);
        case AIRPORT + 8:
            *deltaHPtr = -2;
            *deltaVPtr = -1;
            return (6);
        case AIRPORT + 9:
            *deltaHPtr = -3;
            *deltaVPtr = -1;
            return (6);

    /*** third row ***/
        case AIRPORT + 12:
            *deltaHPtr = 0;
            *deltaVPtr = -2;
            return (6);
        case AIRPORT + 13:
            *deltaHPtr = -1;
            *deltaVPtr = -2;
            return (6);
        case AIRPORT + 14:
            *deltaHPtr = -2;
            *deltaVPtr = -2;
            return (6);
        case AIRPORT + 15:
            *deltaHPtr = -3;
            *deltaVPtr = -2;
            return (6);

    /*** fourth row ***/
        case AIRPORT + 18:
            *deltaHPtr = 0;
            *deltaVPtr = -3;
            return (6);
        case AIRPORT + 19:
            *deltaHPtr = -1;
            *deltaVPtr = -3;
            return (6);
        case AIRPORT + 20:
            *deltaHPtr = -2;
            *deltaVPtr = -3;
            return (6);
        case AIRPORT + 21:
            *deltaHPtr = -3;
            *deltaVPtr = -3;
            return (6);

        default:
            *deltaHPtr = 0;
            *deltaVPtr = 0;
            return (0);
    }
}

short tally(short tileValue)
{
    /*
     * can we autobulldoze this tile? 
     */
    if(((tileValue >= FIRSTRIVEDGE) && (tileValue <= LASTRUBBLE)) ||
       ((tileValue >= (POWERBASE + 2)) && (tileValue <= (POWERBASE + 12))) || ((tileValue >= TINYEXP) &&
                                                                               (tileValue <= (LASTTINYEXP + 2))))
    {                           /* ??? */
        return (1);
    }
    else
    {
        return (0);
    }
}

short checkSize(short temp)
{
    /*
     * check for the normal com, resl, ind 3x3 zones & the fireDept & PoliceDept 
     */
    if(((temp >= (RESBASE - 1)) && (temp <= (PORTBASE - 1))) ||
       ((temp >= (LASTPOWERPLANT + 1)) && (temp <= (POLICESTATION + 4))))
    {
        return (3);
    }
    else if(((temp >= PORTBASE) && (temp <= LASTPORT)) ||
            ((temp >= COALBASE) && (temp <= LASTPOWERPLANT)) || ((temp >= STADIUMBASE) && (temp <= LASTZONE)))
    {
        return (4);
    }
    return (0);
}

/* 3x3 */

void check3x3border(short xMap, short yMap)
{
    short xPos, yPos;
    short cnt;

    xPos = xMap;
    yPos = yMap - 1;
    for(cnt = 0; cnt < 3; cnt++)
    {
    /*** this will do the upper bordering row ***/
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        xPos++;
    }

    xPos = xMap - 1;
    yPos = yMap;
    for(cnt = 0; cnt < 3; cnt++)
    {
    /*** this will do the left bordering row ***/
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        yPos++;
    }

    xPos = xMap;
    yPos = yMap + 3;
    for(cnt = 0; cnt < 3; cnt++)
    {
    /*** this will do the bottom bordering row ***/
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        xPos++;
    }

    xPos = xMap + 3;
    yPos = yMap;
    for(cnt = 0; cnt < 3; cnt++)
    {
    /*** this will do the right bordering row ***/
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        yPos++;
    }
}

int check3x3(SimView * view, short mapH, short mapV, short base, short tool)
{
    register short rowNum, columnNum;
    register short holdMapH, holdMapV;
    short xPos, yPos;
    short cost = 0;
    short tileValue;
    short flag;

    mapH--;
    mapV--;
    if((mapH < 0) || (mapH > (WORLD_X - 3)) || (mapV < 0) || (mapV > (WORLD_Y - 3)))
    {
        return -1;
    }

    xPos = holdMapH = mapH;
    yPos = holdMapV = mapV;

    flag = 1;

    for(rowNum = 0; rowNum <= 2; rowNum++)
    {
        mapH = holdMapH;

        for(columnNum = 0; columnNum <= 2; columnNum++)
        {
            tileValue = Map[mapH++][mapV] & LOMASK;

            if(autoBulldoze)
            {
                /*
                 * if autoDoze is enabled, add up the cost of bulldozed tiles 
                 */
                if(tileValue != 0)
                {
                    if(tally(tileValue))
                    {
                        cost++;
                    }
                    else
                    {
                        flag = 0;
                    }
                }
            }
            else
            {
                /*
                 * check and see if the tile is clear or not  
                 */
                if(tileValue != 0)
                {
                    flag = 0;
                }
            }
        }
        mapV++;
    }

    if(flag == 0)
    {
        return -1;
    }

    cost += CostOf[tool];

    if((TotalFunds - cost) < 0)
    {
        return -2;
    }

    if((Players > 1) && (OverRide == 0) && (cost >= Expensive) && (view != NULL) && (view->super_user == 0))
    {
        return -3;
    }

    /*
     * take care of the money situtation here 
     */
    Spend(cost);
    UpdateFunds();

    mapV = holdMapV;

    for(rowNum = 0; rowNum <= 2; rowNum++)
    {
        mapH = holdMapH;

        for(columnNum = 0; columnNum <= 2; columnNum++)
        {
            if(columnNum == 1 && rowNum == 1)
            {
                Map[mapH++][mapV] = base + BNCNBIT + ZONEBIT;
            }
            else
            {
                Map[mapH++][mapV] = base + BNCNBIT;
            }
            base++;
        }
        mapV++;
    }
    check3x3border(xPos, yPos);
    return 1;
}

/* 4x4 */

void check4x4border(short xMap, short yMap)
{
    short *tilePtr;
    short xPos, yPos;
    short cnt;

    xPos = xMap;
    yPos = yMap - 1;
    for(cnt = 0; cnt < 4; cnt++)
    {
        /*
         * this will do the upper bordering row 
         */
        tilePtr = &Map[xPos][yPos];
        ConnecTile(xPos, yPos, tilePtr, 0);
        xPos++;
    }

    xPos = xMap - 1;
    yPos = yMap;
    for(cnt = 0; cnt < 4; cnt++)
    {
        /*
         * this will do the left bordering row 
         */
        tilePtr = &Map[xPos][yPos];
        ConnecTile(xPos, yPos, tilePtr, 0);
        yPos++;
    }

    xPos = xMap;
    yPos = yMap + 4;
    for(cnt = 0; cnt < 4; cnt++)
    {
        /*
         * this will do the bottom bordering row 
         */
        tilePtr = &Map[xPos][yPos];
        ConnecTile(xPos, yPos, tilePtr, 0);
        xPos++;
    }

    xPos = xMap + 4;
    yPos = yMap;
    for(cnt = 0; cnt < 4; cnt++)
    {
        /*
         * this will do the right bordering row 
         */
        tilePtr = &Map[xPos][yPos];
        ConnecTile(xPos, yPos, tilePtr, 0);
        yPos++;
    }
}

short check4x4(SimView * view, short mapH, short mapV, short base, short aniFlag, short tool)
{
    register short rowNum, columnNum;
    short h, v;
    short holdMapH;
    short xMap, yMap;
    short tileValue;
    short flag;
    short cost = 0;

    mapH--;
    mapV--;
    if((mapH < 0) || (mapH > (WORLD_X - 4)) || (mapV < 0) || (mapV > (WORLD_Y - 4)))
    {
        return -1;
    }

    h = xMap = holdMapH = mapH;
    v = yMap = mapV;

    flag = 1;

    for(rowNum = 0; rowNum <= 3; rowNum++)
    {
        mapH = holdMapH;

        for(columnNum = 0; columnNum <= 3; columnNum++)
        {
            tileValue = Map[mapH++][mapV] & LOMASK;

            if(autoBulldoze)
            {
                /*
                 * if autoDoze is enabled, add up the cost of bulldozed tiles 
                 */
                if(tileValue != 0)
                {
                    if(tally(tileValue))
                    {
                        cost++;
                    }
                    else
                    {
                        flag = 0;
                    }
                }
            }
            else
            {
                /*
                 * check and see if the tile is clear or not  
                 */
                if(tileValue != 0)
                {
                    flag = 0;
                }
            }
        }
        mapV++;
    }

    if(flag == 0)
    {
        return -1;
    }

    cost += CostOf[tool];

    if((TotalFunds - cost) < 0)
    {
        return -2;
    }

    if((Players > 1) && (OverRide == 0) && (cost >= Expensive) && (view != NULL) && (view->super_user == 0))
    {
        return -3;
    }

    /*
     * take care of the money situtation here 
     */
    Spend(cost);
    UpdateFunds();

    mapV = v;
    holdMapH = h;

    for(rowNum = 0; rowNum <= 3; rowNum++)
    {
        mapH = holdMapH;

        for(columnNum = 0; columnNum <= 3; columnNum++)
        {
            if(columnNum == 1 && rowNum == 1)
                Map[mapH++][mapV] = base + BNCNBIT + ZONEBIT;
            else if(columnNum == 1 && rowNum == 2 && aniFlag)
                Map[mapH++][mapV] = base + BNCNBIT + ANIMBIT;
            else
                Map[mapH++][mapV] = base + BNCNBIT;
            base++;
        }
        mapV++;
    }
    check4x4border(xMap, yMap);
    return 1;
}

/* 6x6 */

void check6x6border(short xMap, short yMap)
{
    short xPos, yPos;
    short cnt;

    xPos = xMap;
    yPos = yMap - 1;
    for(cnt = 0; cnt < 6; cnt++)
    {
        /*
         * this will do the upper bordering row 
         */
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        xPos++;
    }

    xPos = xMap - 1;
    yPos = yMap;
    for(cnt = 0; cnt < 6; cnt++)
    {
        /*
         * this will do the left bordering row 
         */
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        yPos++;
    }

    xPos = xMap;
    yPos = yMap + 6;
    for(cnt = 0; cnt < 6; cnt++)
    {
        /*
         * this will do the bottom bordering row 
         */
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        xPos++;
    }

    xPos = xMap + 6;
    yPos = yMap;
    for(cnt = 0; cnt < 6; cnt++)
    {
        /*
         * this will do the right bordering row 
         */
        ConnecTile(xPos, yPos, &Map[xPos][yPos], 0);
        yPos++;
    }
}

short check6x6(SimView * view, short mapH, short mapV, short base, short tool)
{
    register short rowNum, columnNum;
    short h, v;
    short holdMapH;
    short xMap, yMap;
    short flag;
    short tileValue;
    short cost = 0;

    mapH--;
    mapV--;
    if((mapH < 0) || (mapH > (WORLD_X - 6)) || (mapV < 0) || (mapV > (WORLD_Y - 6)))
        return -1;

    h = xMap = holdMapH = mapH;
    v = yMap = mapV;

    flag = 1;

    for(rowNum = 0; rowNum <= 5; rowNum++)
    {
        mapH = holdMapH;

        for(columnNum = 0; columnNum <= 5; columnNum++)
        {
            tileValue = Map[mapH++][mapV] & LOMASK;

            if(autoBulldoze)
            {
                /*
                 * if autoDoze is enabled, add up the cost of bulldozed tiles 
                 */
                if(tileValue != 0)
                {
                    if(tally(tileValue))
                    {
                        cost++;
                    }
                    else
                    {
                        flag = 0;
                    }
                }
            }
            else
            {
                /*
                 * check and see if the tile is clear or not  
                 */
                if(tileValue != 0)
                {
                    flag = 0;
                }
            }
        }
        mapV++;
    }

    if(flag == 0)
    {
        return -1;
    }

    cost += CostOf[tool];

    if((TotalFunds - cost) < 0)
    {
        return -2;
    }

    if((Players > 1) && (OverRide == 0) && (cost >= Expensive) && (view != NULL) && (view->super_user == 0))
    {
        return -3;
    }

    /*
     * take care of the money situtation here 
     */
    Spend(cost);
    UpdateFunds();

    mapV = v;
    holdMapH = h;

    for(rowNum = 0; rowNum <= 5; rowNum++)
    {
        mapH = holdMapH;

        for(columnNum = 0; columnNum <= 5; columnNum++)
        {
            if(columnNum == 1 && rowNum == 1)
            {
                Map[mapH++][mapV] = base + BNCNBIT + ZONEBIT;
            }
            else
            {
                Map[mapH++][mapV] = base + BNCNBIT;
            }
            base++;
        }
        mapV++;
    }
    check6x6border(xMap, yMap);
    return 1;
}

/* QUERY */

/* search table for zone status string match */
static short idArray[28] = {
    DIRT, RIVER, TREEBASE, RUBBLE,
    FLOOD, RADTILE, FIRE, ROADBASE,
    POWERBASE, RAILBASE, RESBASE, COMBASE,
    INDBASE, PORTBASE, AIRPORTBASE, COALBASE,
    FIRESTBASE, POLICESTBASE, STADIUMBASE, NUCLEARBASE,
    827, 832, FOUNTAIN, INDBASE2,
    FOOTBALLGAME1, VBRDG0, 952, 956
};

/*
  0, 2, 21, 44, 
  48, 52, 53, 64,
  208, 224, 240, 423, 
  612, 693, 709, 745,
  761, 770, 779, 811, 
  827, 832, 840, 844,
  932, 948, 952, 956

  Clear, Water, Trees, Rubble, 
  Flood, Radioactive Waste, Fire, Road,
  Power, Rail, Residential, Commercial,
  Industrial, Port, AirPort, Coal Power,
  Fire Department, Police Department, Stadium, Nuclear Power, 
  Draw Bridge, Radar Dish, Fountain, Industrial,
  49er's 38  Bears 3, Draw Bridge, Ur 238
*/

int getDensityStr(short catNo, short mapH, short mapV)
{
    int z;

    switch (catNo)
    {
        case 0:
            z = PopDensity[mapH >> 1][mapV >> 1];
            z = z >> 6;
            z = z & 3;
            return (z);
        case 1:
            z = LandValueMem[mapH >> 1][mapV >> 1];
            if(z < 30)
                return (4);
            if(z < 80)
                return (5);
            if(z < 150)
                return (6);
            return (7);
        case 2:
            z = CrimeMem[mapH >> 1][mapV >> 1];
            z = z >> 6;
            z = z & 3;
            return (z + 8);
        case 3:
            z = PollutionMem[mapH >> 1][mapV >> 1];
            if((z < 64) && (z > 0))
                return (13);
            z = z >> 6;
            z = z & 3;
            return (z + 12);
        case 4:
            z = RateOGMem[mapH >> 3][mapV >> 3];
            if(z < 0)
                return (16);
            if(z == 0)
                return (17);
            if(z > 100)
                return (19);
            return (18);
    }
    return 0;
}

void doZoneStatus(short mapH, short mapV)
{
    char localStr[256];
    char statusStr[5][256];
    short id;
    short x;
    short tileNum;
    short found;

    tileNum = Map[mapH][mapV] & LOMASK;

    if(tileNum >= COALSMOKE1 && tileNum < FOOTBALLGAME1)
        tileNum = COALBASE;

    found = 1;
    for(x = 1; x < 29 && found; x++)
    {
        if(tileNum < idArray[x])
        {
            found = 0;
        }
    }
    x--;

    if(x < 1 || x > 28)
        x = 28;

    GetIndString(localStr, 219, x);

    for(x = 0; x < 5; x++)
    {
        id = getDensityStr(x, mapH, mapV);
        id++;
        if(id <= 0)
            id = 1;
        if(id > 20)
            id = 20;
        GetIndString(statusStr[x], 202, id);
    }

    DoShowZoneStatus(localStr, statusStr[0], statusStr[1], statusStr[2], statusStr[3], statusStr[4], mapH, mapV);
}

void DoShowZoneStatus(char *str, char *s0, char *s1, char *s2, char *s3, char *s4, int x, int y)
{
    char buf[1024];

    sprintf(buf, "UIShowZoneStatus {%s} {%s} {%s} {%s} {%s} {%s} %d %d", str, s0, s1, s2, s3, s4, x, y);
    Eval(buf);
}

/* comefrom: processWand */
void put3x3Rubble(short x, short y)
{
    register int xx, yy, zz;

    for(xx = x - 1; xx < x + 2; xx++)
    {
        for(yy = y - 1; yy < y + 2; yy++)
        {
            if(TestBounds(xx, yy))
            {
                zz = Map[xx][yy] & LOMASK;
                if((zz != RADTILE) && (zz != 0))
                {
                    Map[xx][yy] = (DoAnimation ? (TINYEXP + Rand(2)) : SOMETINYEXP) | ANIMBIT | BULLBIT;
                }
            }
        }
    }
}

/* comefrom: processWand */
void put4x4Rubble(short x, short y)
{
    register int xx, yy, zz;

    for(xx = x - 1; xx < x + 3; xx++)
    {
        for(yy = y - 1; yy < y + 3; yy++)
        {
            if(TestBounds(xx, yy))
            {
                zz = Map[xx][yy] & LOMASK;
                if((zz != RADTILE) && (zz != 0))
                {
                    Map[xx][yy] = (DoAnimation ? (TINYEXP + Rand(2)) : SOMETINYEXP) | ANIMBIT | BULLBIT;
                }
            }
        }
    }
}

/* comefrom: processWand */
void put6x6Rubble(short x, short y)
{
    register int xx, yy, zz;

    for(xx = x - 1; xx < x + 5; xx++)
    {
        for(yy = y - 1; yy < y + 5; yy++)
        {
            if(TestBounds(xx, yy))
            {
                zz = Map[xx][yy] & LOMASK;
                if((zz != RADTILE) && (zz != 0))
                {
                    Map[xx][yy] = (DoAnimation ? (TINYEXP + Rand(2)) : SOMETINYEXP) | ANIMBIT | BULLBIT;
                }
            }
        }
    }
}

void DidTool(SimView * view, char *name, short x, short y)
{
    char buf[256];

    if(view != NULL)
    {
        sprintf(buf, "UIDidTool%s %s %d %d", name, Tk_PathName(view->tkwin), x, y);
        Eval(buf);
    }
}

void DoSetWandState(SimView * view, short state)
{
    char buf[256];

    sprintf(buf, "UISetToolState %s %d", Tk_PathName(view->tkwin), state);
    Eval(buf);
}

/************************************************************************/
/* TOOLS */

int fire_exists_on_map()
{
    int i, j, isfire;

    for(i = 0; i < WORLD_X; i++)
    {
        for(j = 0; j < WORLD_Y; j++)
        {
            isfire = Map[i][j] & LOMASK;
            if((isfire >= FLOOD) && (isfire < ROADBASE))
            {
                return 1;
            }
        }
    }

    return 0;
}

int query_tool(SimView * view, short x, short y)
{
    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    doZoneStatus(x, y);
    DidTool(view, "Qry", x, y);
    return 1;
}

int bulldozer_tool(SimView * view, short x, short y)
{
    unsigned short currTile, temp;
    short zoneSize, deltaH, deltaV;
    int result = 1;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    if(fire_exists_on_map())
    {
        return -1;
    }

    currTile = Map[x][y];
    temp = currTile & LOMASK;

    if(currTile & ZONEBIT)
    {                           /* zone center bit is set */
        if(TotalFunds > 0)
        {
            Spend(1);
            switch (checkSize(temp))
            {
                case 3:
                    MakeSound("city", "Explosion-High");
                    put3x3Rubble(x, y);
                    break;

                case 4:
                    put4x4Rubble(x, y);
                    MakeSound("city", "Explosion-Low");
                    break;

                case 6:
                    MakeSound("city", "Explosion-High");
                    MakeSound("city", "Explosion-Low");
                    put6x6Rubble(x, y);
                    break;

                default:
                    break;
            }
        }
    }
    else if((zoneSize = checkBigZone(temp, &deltaH, &deltaV)))
    {
        if(TotalFunds > 0)
        {
            Spend(1);
            switch (zoneSize)
            {
                case 3:
                    MakeSound("city", "Explosion-High");
                    break;

                case 4:
                    MakeSound("city", "Explosion-Low");
                    put4x4Rubble(x + deltaH, y + deltaV);
                    break;

                case 6:
                    MakeSound("city", "Explosion-High");
                    MakeSound("city", "Explosion-Low");
                    put6x6Rubble(x + deltaH, y + deltaV);
                    break;
            }
        }
    }
    else
    {
        if(temp == RIVER || temp == REDGE || temp == CHANNEL)
        {
            if(TotalFunds >= 6)
            {
                result = ConnecTile(x, y, &Map[x][y], 1);
                if(temp != (Map[x][y] & LOMASK))
                {
                    Spend(5);
                }
            }
            else
            {
                result = 0;
            }
        }
        else
        {
            result = ConnecTile(x, y, &Map[x][y], 1);
        }
    }
    UpdateFunds();
    if(result == 1)
    {
        DidTool(view, "Dozr", x, y);
    }
    return result;
}

int road_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = ConnecTile(x, y, &Map[x][y], 2);
    UpdateFunds();
    if(result == 1)
    {
        DidTool(view, "Road", x, y);
    }
    return result;
}

int rail_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = ConnecTile(x, y, &Map[x][y], 3);
    UpdateFunds();
    if(result == 1)
    {
        DidTool(view, "Rail", x, y);
    }
    return result;
}

int wire_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = ConnecTile(x, y, &Map[x][y], 4);
    UpdateFunds();
    if(result == 1)
    {
        DidTool(view, "Wire", x, y);
    }
    return result;
}

int park_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
        return -1;

    result = putDownPark(view, x, y);
    if(result == 1)
    {
        DidTool(view, "Park", x, y);
    }
    return result;
}

int residential_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check3x3(view, x, y, RESBASE, residentialState);
    if(result == 1)
    {
        DidTool(view, "Res", x, y);
    }
    return result;
}

int commercial_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check3x3(view, x, y, COMBASE, commercialState);
    if(result == 1)
    {
        DidTool(view, "Com", x, y);
    }
    return result;
}

int industrial_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check3x3(view, x, y, INDBASE, industrialState);
    if(result == 1)
    {
        DidTool(view, "Ind", x, y);
    }
    return result;
}

int police_dept_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check3x3(view, x, y, POLICESTBASE, policeState);
    if(result == 1)
    {
        DidTool(view, "Pol", x, y);
    }
    return result;
}

int fire_dept_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    if(fire_exists_on_map())
    {
        return -1;
    }

    result = check3x3(view, x, y, FIRESTBASE, fireState);
    if(result == 1)
    {
        DidTool(view, "Fire", x, y);
    }
    return result;
}

int stadium_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check4x4(view, x, y, STADIUMBASE, 0, stadiumState);
    if(result == 1)
    {
        DidTool(view, "Stad", x, y);
    }
    return result;
}

int coal_power_plant_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check4x4(view, x, y, COALBASE, 1, powerState);
    if(result == 1)
    {
        DidTool(view, "Coal", x, y);
    }
    return result;
}

int nuclear_power_plant_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check4x4(view, x, y, NUCLEARBASE, 1, nuclearState);
    if(result == 1)
    {
        DidTool(view, "Nuc", x, y);
    }
    return result;
}

int seaport_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check4x4(view, x, y, PORTBASE, 0, seaportState);
    if(result == 1)
    {
        DidTool(view, "Seap", x, y);
    }
    return result;
}

int airport_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check6x6(view, x, y, AIRPORTBASE, airportState);
    if(result == 1)
    {
        DidTool(view, "Airp", x, y);
    }
    return result;
}

int network_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = putDownNetwork(view, x, y);
    if(result == 1)
    {
        DidTool(view, "Net", x, y);
    }
    return result;
}

#if 0
int special_tool(SimView * view, short x, short y)
{
    int result;

    if((x < 0) || (x > (WORLD_X - 1)) || (y < 0) || (y > (WORLD_Y - 1)))
    {
        return -1;
    }

    result = check3x3(view, x, y, specialBase, specialState);
    if(result == 1)
    {
        DidTool(view, "Special", x, y);
    }
    return result;
}
#endif

int ChalkTool(SimView * view, short x, short y, short color, short first)
{
    if(first)
    {
        ChalkStart(view, x, y, color);
    }
    else
    {
        ChalkTo(view, x, y);
    }
    DidTool(view, "Chlk", x, y);
    return 1;
}

void ChalkStart(SimView * view, int x, int y, int color)
{
    Ink *ink;
    Ink **ip;

    for(ip = &sim->overlay; *ip != NULL; ip = &((*ip)->next));

    *ip = ink = NewInk();
    ink->x = x;
    ink->y = y;
    ink->color = color;
    StartInk(ink, x, y);
    view->track_info = (char *) ink;
    view->last_x = x;
    view->last_y = y;
    view->tool_event_time = view->tool_last_event_time = ((TkWindow *) view->tkwin)->dispPtr->lastEventTime;
}

void ChalkTo(SimView * view, int x, int y)
{
#ifdef MOTIONBUFFER
    int x0, y0, lx, ly;
#endif
    Ink *ink = (Ink *) view->track_info;

#ifdef MOTIONBUFFER
    if(view->x->dpy->motion_buffer)
    {
        XTimeCoord *coords = NULL, *coord;
        int n = 0, i;

        view->tool_last_event_time = view->tool_event_time;
        view->tool_event_time = ((TkWindow *) view->tkwin)->dispPtr->lastEventTime;

        coords = XGetMotionEvents(view->x->dpy,
                                  Tk_WindowId(view->tkwin), view->tool_last_event_time, view->tool_event_time, &n);
#    if 0
        printf("got %d events at %x from %d to %d (%d elapsed)\n",
               n, coords,
               view->tool_last_event_time, view->tool_event_time, view->tool_event_time - view->tool_last_event_time);
#    endif
        if(n)
        {
            lx = ink->last_x;
            ly = ink->last_y;

            for(i = 0, coord = coords; i < n; i++, coord++)
            {
                ViewToPixelCoords(view, coord->x, coord->y, &x0, &y0);
                lx = (lx + lx + lx + x0) >> 2;
                ly = (ly + ly + ly + y0) >> 2;
#    if 0
                printf("adding %d %d => %d %d => %d %d\n", coord->x, coord->y, x0, y0, lx, ly);
#    endif
                AddInk(ink, lx, ly);
            }
        }

        if(coords)
        {
            XFree((char *) coords);
        }
    }
#endif

    AddInk(ink, x, y);
    view->last_x = x;
    view->last_y = y;
}

int EraserTool(SimView * view, short x, short y, short first)
{
    if(first)
    {
        EraserStart(view, x, y);
    }
    else
    {
        EraserTo(view, x, y);
    }
    DidTool(view, "Eraser", x, y);
    return 1;
}

int InkInBox(Ink * ink, int left, int top, int right, int bottom)
{
    if((left <= ink->right) && (right >= ink->left) && (top <= ink->bottom) && (bottom >= ink->top))
    {
        int x, y, lx, ly, i;

        if(ink->length == 1)
        {
            return 1;
        }

        x = ink->x;
        y = ink->y;
        for(i = 1; i < ink->length; i++)
        {
            int ileft, iright, itop, ibottom;

            lx = x;
            ly = y;
            x += ink->points[i].x;
            y += ink->points[i].y;
            if(x < lx)
            {
                ileft = x;
                iright = lx;
            }
            else
            {
                ileft = lx;
                iright = x;
            }
            if(y < ly)
            {
                itop = y;
                ibottom = ly;
            }
            else
            {
                itop = ly;
                ibottom = y;
            }
            if((left <= iright) && (right >= ileft) && (top <= ibottom) && (bottom >= itop))
            {
                return 1;
            }
        }
    }
    return 0;
}

void EraserStart(SimView * view, int x, int y)
{
    EraserTo(view, x, y);
}

void EraserTo(SimView * view, int x, int y)
{
    Ink **ip, *ink;

    for(ip = &sim->overlay; *ip != NULL;)
    {
        ink = *ip;
        if(InkInBox(ink, x - 8, y - 8, x + 8, y + 8))
        {

            for(view = sim->editor; view != NULL; view = view->next)
            {
                int vleft, vtop;

                if((ink->right >= (vleft = (view->pan_x - (view->w_width / 2)))) &&
                   (ink->left <= (vleft + view->w_width)) &&
                   (ink->bottom >= (vtop = (view->pan_y - (view->w_height / 2)))) &&
                   (ink->top <= (vtop + view->w_height)))
                {
                    view->overlay_mode = 0;
                    EventuallyRedrawView(view);
                }
            }

            *ip = ink->next;

            FreeInk(ink);
        }
        else
        {
            ip = &((*ip)->next);
        }
    }
}

int do_tool(SimView * view, short state, short x, short y, short first)
{
    int result = 0;

    switch (state)
    {
        case residentialState:
            result = residential_tool(view, x >> 4, y >> 4);
            break;
        case commercialState:
            result = commercial_tool(view, x >> 4, y >> 4);
            break;
        case industrialState:
            result = industrial_tool(view, x >> 4, y >> 4);
            break;
        case fireState:
            result = fire_dept_tool(view, x >> 4, y >> 4);
            break;
        case queryState:
            result = query_tool(view, x >> 4, y >> 4);
            break;
        case policeState:
            result = police_dept_tool(view, x >> 4, y >> 4);
            break;
        case wireState:
            result = wire_tool(view, x >> 4, y >> 4);
            break;
        case dozeState:
            result = bulldozer_tool(view, x >> 4, y >> 4);
            break;
        case rrState:
            result = rail_tool(view, x >> 4, y >> 4);
            break;
        case roadState:
            result = road_tool(view, x >> 4, y >> 4);
            break;
        case chalkState:
            result = ChalkTool(view, x - 5, y + 11, COLOR_WHITE, first);
            break;
        case eraserState:
            result = EraserTool(view, x, y, first);
            break;
        case stadiumState:
            result = stadium_tool(view, x >> 4, y >> 4);
            break;
        case parkState:
            result = park_tool(view, x >> 4, y >> 4);
            break;
        case seaportState:
            result = seaport_tool(view, x >> 4, y >> 4);
            break;
        case powerState:
            result = coal_power_plant_tool(view, x >> 4, y >> 4);
            break;
        case nuclearState:
            result = nuclear_power_plant_tool(view, x >> 4, y >> 4);
            break;
        case airportState:
            result = airport_tool(view, x >> 4, y >> 4);
            break;
        case networkState:
            result = network_tool(view, x >> 4, y >> 4);
            break;

        default:
            result = 0;
            break;
    }

    return result;
}

int current_tool(SimView * view, short x, short y, short first)
{
    return do_tool(view, view->tool_state, x, y, first);
}

void DoTool(SimView * view, short tool, short x, short y)
{
    int result;

    result = do_tool(view, tool, x << 4, y << 4, 1);

    if(result == -1)
    {
        ClearMes();
        SendMes(34);
        MakeSoundOn(view, "edit", "UhUh");
    }
    else if(result == -2)
    {
        ClearMes();
        SendMes(33);
        MakeSoundOn(view, "edit", "Sorry");
    }

    sim_skip = 0;
    view->skip = 0;
    InvalidateEditors();
}

void ToolDown(SimView * view, int x, int y)
{
    int result;

    ViewToPixelCoords(view, x, y, &x, &y);
    view->last_x = x;
    view->last_y = y;

    result = current_tool(view, x, y, 1);

    if(result == -1)
    {
        ClearMes();
        SendMes(34);
        MakeSoundOn(view, "edit", "UhUh");
    }
    else if(result == -2)
    {
        ClearMes();
        SendMes(33);
        MakeSoundOn(view, "edit", "Sorry");
    }
    else if(result == -3)
    {
        DoPendTool(view, view->tool_state, x >> 4, y >> 4);
    }

    sim_skip = 0;
    view->skip = 0;
    view->invalid = 1;
}

void ToolUp(SimView * view, int x, int y)
{
    ToolDrag(view, x, y);
}

void ToolDrag(SimView * view, int px, int py)
{
    int x, y, dx, dy, adx, ady, lx, ly, dist;
    float i, step, tx, ty, dtx, dty, rx, ry;

    ViewToPixelCoords(view, px, py, &x, &y);
    view->tool_x = x;
    view->tool_y = y;

    if((view->tool_state == chalkState) || (view->tool_state == eraserState))
    {

        current_tool(view, x, y, 0);
        view->last_x = x;
        view->last_y = y;

    }
    else
    {

        dist = toolSize[view->tool_state];

        x >>= 4;
        y >>= 4;
        lx = view->last_x >> 4;
        ly = view->last_y >> 4;

        dx = x - lx;
        dy = y - ly;

        if(dx == 0 && dy == 0)
        {
            return;
        }

        adx = ABS(dx);
        ady = ABS(dy);

        if(adx > ady)
        {
            step = .3 / adx;
        }
        else
        {
            step = .3 / ady;
        }

        rx = (dx < 0 ? 1 : 0);
        ry = (dy < 0 ? 1 : 0);

        if(dist == 1)
        {
            for(i = 0.0; i <= 1 + step; i += step)
            {
                tx = (view->last_x >> 4) + i * dx;
                ty = (view->last_y >> 4) + i * dy;
                dtx = ABS(tx - lx);
                dty = ABS(ty - ly);
                if(dtx >= 1 || dty >= 1)
                {
                    /*
                     * fill in corners 
                     */
                    if((dtx >= 1) && (dty >= 1))
                    {
                        if(dtx > dty)
                        {
                            current_tool(view, ((int) (tx + rx)) << 4, ly << 4, 0);
                        }
                        else
                        {
                            current_tool(view, lx << 4, ((int) (ty + ry)) << 4, 0);
                        }
                    }
                    lx = (int) (tx + rx);
                    ly = (int) (ty + ry);
                    current_tool(view, lx << 4, ly << 4, 0);
                }
            }
        }
        else
        {
            for(i = 0.0; i <= 1 + step; i += step)
            {
                tx = (view->last_x >> 4) + i * dx;
                ty = (view->last_y >> 4) + i * dy;
                dtx = ABS(tx - lx);
                dty = ABS(ty - ly);
                lx = (int) (tx + rx);
                ly = (int) (ty + ry);
                current_tool(view, lx << 4, ly << 4, 0);
            }
        }

        view->last_x = (lx << 4) + 8;
        view->last_y = (ly << 4) + 8;
    }
    sim_skip = 0;               /* update editors overlapping this one */
    view->skip = 0;
    view->invalid = 1;
}

void DoPendTool(SimView * view, int tool, int x, int y)
{
    char buf[256];

    sprintf(buf, "DoPendTool %s %d %d %d", Tk_PathName(view->tkwin), tool, x, y);
    Eval(buf);
}
